I'm not sure it's necessarily harder now to launch a new network. Obviously it's going to be harder to launch something similar to what's already out there, bu

I'm not sure it's necessarily harder now to launch a new network. Obviously it's going to be harder to launch something similar to what's already out there, but I suspect that truly novel services are actually easier to spread the word about because the velocity of information is so much higher. Do something really cool, and you'll be splashed across the Twtterverse in a matter of hours.